CN2522198Y - Casting hook dummy bar head protective cap - Google Patents
Casting hook dummy bar head protective cap Download PDFInfo
- Publication number
- CN2522198Y CN2522198Y CN 02223298 CN02223298U CN2522198Y CN 2522198 Y CN2522198 Y CN 2522198Y CN 02223298 CN02223298 CN 02223298 CN 02223298 U CN02223298 U CN 02223298U CN 2522198 Y CN2522198 Y CN 2522198Y
- Authority
- CN
- China
- Prior art keywords
- dummy bar
- bar head
- molten steel
- protective cap
- thermal insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000005266 casting Methods 0.000 title claims description 7
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 abstract description 21
- 239000010959 steel Substances 0.000 abstract description 21
- 238000009749 continuous casting Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000013459 approach Methods 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a be applied to cast hook dummy bar head protective cap of metallurgical continuous casting production mainly comprises dustcoat 4, heat insulating board 3 and inner membrance 2, installs a couple section CD additional on heat insulating board 3, and the protective cap is detained tightly on dummy bar head 1. When the molten steel reaches the outer cover 4 before the molten steel reaches the dummy bar head 1 from the crystallizer, the molten steel gradually approaches the heat insulation plate 3, and the hook section CD is arranged on the heat insulation plate 3, so that the heat insulation plate 3 cannot be immediately softened or melted to slide downwards along the dummy bar head 1 due to the arrival of the molten steel, the time for burning the dummy bar head by the fact that the molten steel directly contacts the dummy bar head 1 is delayed, the molten steel can be well attached to the dummy bar head 1, and the separation of the dummy bar head 1 and a continuous casting billet can be realized after the molten steel is completely solidified.
Description
Technical field the utility model relates to a kind of unlikely casting hook dummy bar head protective cap that is burnt out by molten steel of protection dummy bar head in the metallurgical continuous casting production that is applied to.
The background technology outer cover that the unlikely dummy bar head protective cap that is burnt out too early by molten steel of protection dummy bar head is normally made by organic material in metallurgical continuous casting production at present; inner layer film that metal material is made and the thermal insulation board of being made by the thick metal material of 2～3mm constitute; thermal insulation board is close to the outer cover inwall; and inner layer film is adjacent with the internal layer of thermal insulation board; with wire (as copper wire) with thermal insulation board; outer cover and inner layer film are tied up; do not cause thermal insulation board to slide with respect to outer cover; the nose shape of the outside of the protective cap of Zhi Zuoing and interior shape and dummy bar head reaches unanimity like this, during use protective cap is buckled in the dummy bar head head and gets final product.The point of the main deficiency of the protective cap of this structure is that in use invar water temperature when crystallizer comes out near dummy bar head is too high; molten steel has one impulsive force to dummy bar head in addition; the fusing of outer cover make molten steel directly contact thermal insulation board so that cause thermal insulation board deliquescing (or fusing) and along dummy bar head toward gliding; consequently also not solidified molten steel directly attaches at the dummy bar head head; burn out dummy bar head; be difficult to make dummy bar head and continuous casting billet to break away from, make dummy bar head scrap or influence continuous casting billet quality.
Summary of the invention task to be solved in the utility model is a kind of structure of design and a variform dummy bar head protective cap thermal insulation board on the basis of former dummy bar head protective cap; make thermal insulation board in that time that continuous casting begins to be tending towards solidifying to molten steel, play the protection dummy bar head, do not burn out dummy bar head.
For the technical scheme of finishing above-mentioned task face employing is: install a hook section additional behind the horizontal segment of thermal insulation board, and the global shape of thermal insulation board and dummy bar head nose shape are reached unanimity, thermal insulation board is held on the dummy bar head head.
Adopt the as above casting hook dummy bar head protective cap of the manufacturing of technical scheme; dummy bar head can prolong 30～50% service life; simultaneously can avoid continuous casting steel effectively and directly burn out dummy bar head, guarantee the bright and clean and smoothness of dummy bar head head surface, continuous casting billet and dummy bar head are broken off relations.
Appended drawings is the structural representation that casting hook dummy bar head protective cap described in the utility model and dummy bar head are combined, and also is specification digest accompanying drawing of the present utility model.
The specific embodiment is described in further detail the specific embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in drawings; earlier the outer cover 4 of protective cap is made into the shape of oblique line section, horizontal segment and segmental arc; behind oblique line section AB, the horizontal segment BC of thermal insulation board 3, add system hook section CD; the shape of the thermal insulation board of being made up of oblique line section AB, horizontal segment BC, hook section CD 3 is consistent with the shape of outer cover 4; and thermal insulation board 3 is close to the inwall of outer cover 4; inner layer film 2 is close to thermal insulation board 3 again; with wire inner layer film 2, thermal insulation board 3 and outer cover 4 are bundled into an integral body and constitute the dummy bar head protective cap, the head that this protective cap is buckled in dummy bar head 1 can put into production.
According to existing technological process; this casting hook dummy bar head protective cap tightly is buckled on the dummy bar head head that comes into operation; when continuous casting begins; molten steel earlier enters crystallizer from the continuous casting tundish, in crystallizer through vibrating progressively crystallization and coming out to contact with the horizontal segment of the outer cover 4 of dummy bar head protective cap from crystallizer.Because this moment, molten steel also was in from " liquid " stage to the solid transition, temperature is higher, thereby is easy to outer cover 4 is burnt out.Thereafter molten steel directly contacts the BC section of thermal insulation board 3, makes temperature rising, deliquescing even the fusing of thermal insulation board 3.Because thermal insulation board 3 has hook section CD; directly contact also can not causing thermal insulation board 3 deliquescing immediately for the previous period or dissolving and of thermal insulation board 3 at molten steel to downslide; in this section delays the time of molten steel contact dummy bar head 1 head; because the continuation of liquid steel temperature reduces; molten steel can't melt dummy bar head 1 and can attach by the square on the head of dummy bar head 1; along with dummy bar head 1 progressively leaves crystallizer; continuous casting billet is followed dummy bar head 1 to enter the continuous casting billet cooling section to continue to solidify; play the purpose of protection dummy bar head, can realize continuous casting production again.
Claims (1)
1, casting hook dummy bar head protective cap; it is made up of outer cover (4), thermal insulation board (3), inner layer film (2); outer cover (4) is identical with thermal insulation board (3) shape; thermal insulation board (3) is close to the inwall of outer cover (4); the adjacent again thermal insulation board of inner layer film (2) (3) is characterized in that thermal insulation board (3) has hook section CD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02223298 CN2522198Y (en) | 2002-01-16 | 2002-01-16 | Casting hook dummy bar head protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02223298 CN2522198Y (en) | 2002-01-16 | 2002-01-16 | Casting hook dummy bar head protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522198Y true CN2522198Y (en) | 2002-11-27 |
Family
ID=33701033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02223298 Expired - Fee Related CN2522198Y (en) | 2002-01-16 | 2002-01-16 | Casting hook dummy bar head protective cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522198Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382226A (en) * | 2015-12-03 | 2016-03-09 | 中冶连铸技术工程有限责任公司 | Round billet dummy ingot cap |
| CN106735005A (en) * | 2016-12-27 | 2017-05-31 | 西南铝业（集团）有限责任公司 | Aluminum alloy casting technique |
-
2002
- 2002-01-16 CN CN 02223298 patent/CN2522198Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382226A (en) * | 2015-12-03 | 2016-03-09 | 中冶连铸技术工程有限责任公司 | Round billet dummy ingot cap |
| CN106735005A (en) * | 2016-12-27 | 2017-05-31 | 西南铝业（集团）有限责任公司 | Aluminum alloy casting technique |
| CN106735005B (en) * | 2016-12-27 | 2018-11-20 | 西南铝业（集团）有限责任公司 | Aluminum alloy casting technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |